270813209 has 2 divisors, whose sum is σ = 270813210. Its totient is φ = 270813208.

The previous prime is 270813203. The next prime is 270813227. The reversal of 270813209 is 902318072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148157584 + 122655625 = 12172^2 + 11075^2 .

It is a cyclic number.

It is not a de Polignac number, because 270813209 - 2²⁰ = 269764633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (270813203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135406604 + 135406605.

It is an arithmetic number, because the mean of its divisors is an integer number (135406605).

Almost surely, 2^270813209 is an apocalyptic number.

It is an amenable number.

270813209 is a deficient number, since it is larger than the sum of its proper divisors (1).

270813209 is an equidigital number, since it uses as much as digits as its factorization.

270813209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 270813209 is about 16456.4032826131. The cubic root of 270813209 is about 646.9786476283.

The spelling of 270813209 in words is "two hundred seventy million, eight hundred thirteen thousand, two hundred nine".